well ill chime in.....

i like mining on ViaBTC or slush for PPLNS, or Novablock for PPS+, although i mainly use the PPS+ pools as my roll over backups.

Slush pays transaction fees, and so does ViaBTC, but VIABTC also merge mines a few shitcoins at the same time......

anyway, do your research, keep asking questions etc.....

EDIT: i should add, i havent mined on Slushpool recently as they have had terrible luck, and like you said, with the halving coming, we need to accumulate as much as possible.,